高温期施工水泥混凝土路面时，混凝土拌合物的初凝时间不得小于()。A:3hB:5hC:7hD:l0h

作者: rantiku 人气: - 评论: 0

问题高温期施工水泥混凝土路面时，混凝土拌合物的初凝时间不得小于()。

选项 A:3h B:5h C:7h D:l0h

答案 A

解析

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